Shuttle-checking means for looms.



H. LUSSIER.

SHUTTLE CHECKING MEANS FOR LOOMS.

APPLICATION FILED JULY 15,1911.

1,021,842 I Patented Apr. 2, 1912.

COLUMBIA PLANDGRAPH CO.,WASHINOTON, D. c.

UNITED STATES PATENT oun on.

HENRY LUSSIER, OF SALEM, MASSACI IUSETTS, ASSIGNOR TO DRAPER COMPANY, OF HOPEDALE, MASSACHUSETTS, A CORPORATION OF MAINE.

SHUTTLE-CHECKING MEANS FOR LOOMS.

Specification of Letters Patent.

Patented. Apr. 2, 1912.

Application filed July 15, 1911. Serial No. 638,674.

citizen of theUnited States, and resident of Salem, county of Essex, State of Massachusetts, have invented an Improvement in Shuttle-Ghecking Meansfor Looms, of which the following description, in connection with the accompanying drawing, is a specification, like characters on the drawing representing like parts.

This invention has for its principal object the perfection of shuttle checking means such as is illustrated in the patent to Jonas Northrop No. 772,048, granted October 11,

1904:, but in its principal features it is ca pable of a broader application, and the invention is not to be otherwise limited than as indicated by the appended claim.

The shuttle checking means described in the aforesaid patent comprises among other elements a movable presser acting upon one face of the leather loop which engages the picker stick. This movable presser is mounted to oscillate on a depending vertical stud supported on the lay of the loom. The said shuttle checking means also comprises an arm connected to the free end of the leather loop to set the loop at the same point on each pick, and this arm is mounted to oscillate on the free end of a horizontally disposed stud also carried by the lay of the loom. The said movable presser and the said movable arm in the aforesaid patent are retained in position upon their respective studs by washers on the studs and cotter pins passing through the studs. The wear and tear upon the movable parts of a shuttle checking means is very considerable as is well known, and in the construction referred to. results in the bility to any material wear or breakage,

thus insuring the correct and perfect operation of the shuttle checking means.

The nature of the invention will more fully appear from the accompanying descr ptlon and drawings, and will be particularly pointed out in the appended claim.

The drawings show so much of a loom and the shuttle checking mechanism as is necessary to a disclosure of the invention.

In the drawings, Figure 1 is a front elevation of the upper left hand portion of a loom, the shuttle box, and the shuttle checking means; Fig. 2 is a perspective view of the element by which the movable parts are held in position.

A detailed description of the shuttle mechanism as a whole is unnecessary to an understanding of this invention, and reference to the aforesaid patent to Northrup is made in view thereof. I

In the construction shown the lay A the shuttle-box B, the binder 13*, the picker stick. P and the leather loop 5 are all constructed and operated as in the said patent. In this construction a supporting structure made up of a plurality of members and connected to the lay serves to control the position of the leather loop, and the details of this structure it is unnecessary to describe because they are all as illustrated and described in the aforesaid patent. This supporting structure comprises among other elements a hollow boss 16 having a downturned or depending elongated stud 17 fixedly secured thereto. A longsleevedike hub 18 is rotatably mounted on the stud and has ofiset therefrom an upright presser 21 which bears against the side of the leather loop 5. This hub with its presser is actuated at the required times by the picker stick to swing the presser against the leather loop. The said structure also includes a rigid flat arm 29 extended toward the center of the loom and a fixed stud 30 is extended from the front of this arm at right angles thereto and consequently at substantially right angles to the stud 17. An arm 31 is mounted to rock on the stud 30 and its upper end is pivotally connected by a pin 32 with the free end of the strap 5, the latter being preferably reinforced at 33 to afford a better hold for the pin. This rocker arm 31 is moved to the left, viewing the drawings, by the movement of the leather loop 5, and is moved to the right by the action of a coiled spring, the end of which is seen at 8*. This arm 31 connected with the free end of the strap automatically sets the loop at the same point on each pick by bringing the end of the loop 5 against the stop 11, all as fully described in the said patent. In the said patent the movable presser and its hub is held in place on the stud 17 by a washer and cotter pin, and the movable arm 31 is held in place on its stud 30 by a cotter pin. These movable parts being in frequent motion and subject to the sudden shocks due to the movement of the shuttle and picker stick are subject to great wear and tear, and it has been found that the cotter pins are subject to great wear and frequently fall out or become broken, rendering the shuttle checking means inoperative, and frequently causing a smash.

In the present invention the cotter pins and washers are dispensed with and the movable presser 21 and movable arm 31 are held upon their respective studs in a manner which prevents their displacement and obviates the danger of breakage due to the wear of the parts. For this purpose a locking member shown in perspective in Fig. 2 is provided. This member is provided with a hole by means of which it may be secured by a bolt 51 to a portion of the framework such as the horizontally projecting shelf 28 described in the said patent. The locking member comprises two arms 51 and 52 extending in generally opposite directions and provided with flat forked ends 53 and 54; respectively, the slots in the forked ends being of proper width to slip over the studs 17 and 30 respectively, and the flat sides of the forked ends being at right angles to the axes of the said studs. The construction is such that when the locking member is secured in place by the bolt 51 the fiat side of the forked end 53 will rest against the hub 18 of the movable presser, and the fiat side of the forked end 54 will rest against the hub portion of the movable arm 31. It will be seen, therefore, that the movable members are held firmly in place on their respective studs by a locking member so constructed and presenting such bearing surfaces and of such strength that danger from wear or breakage at this pointis practically eliminated.

While the invention is of particular value in connection with the shuttle checking mechanism of a loom such as described it may be employed for the locking in position of other movable elements of the loom mechanism, or even of other mechanisms.

Having fully described my invention, what I claim as new and desire to secure by Letters Patent is:

In a device of the character described, a supporting structure provided with a pair of fixed fulcrum studs substantially at right angles to each other, a movable member having a hub ortion journaled on each stud, the free end of each stud projecting beyond the hub portion of the member journaled thereon, a locking member having oppositely extended arms provided with flat sided, forked ends at right angles to each other and resting respectively against the hub portions of said movable members, each forked end straddling the projecting end of a stud, thereby holding the movable members securely on the studs while permitting rocking movement of such members, and means to attach the locking member rigidly and fixedly to the supporting structure and prevent any relative movement of the forked ends and the studs with which they cooperate.

In testimony whereof, I have signed my name to this specification, in the presence of two subscribing witnesses.

HENRY LUSSIER.

Witnesses:

MICHEL PHANENF, JAMES J. TIERNEY.

Copies of this patent may be obtained for five cents each, by addressing the Commissioner of Patents, Washington, I). C. 

